WO2008099813A1 - 弁ばね装置と、それを用いたエンジンの動弁機構 - Google Patents

弁ばね装置と、それを用いたエンジンの動弁機構 Download PDF

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Publication number
WO2008099813A1
WO2008099813A1 PCT/JP2008/052266 JP2008052266W WO2008099813A1 WO 2008099813 A1 WO2008099813 A1 WO 2008099813A1 JP 2008052266 W JP2008052266 W JP 2008052266W WO 2008099813 A1 WO2008099813 A1 WO 2008099813A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
spring device
spring
valve spring
engine
Prior art date
Application number
PCT/JP2008/052266
Other languages
English (en)
French (fr)
Inventor
Kazuo Iwata
Noritoshi Takamura
Jun Tominaga
Norihito Tajima
Takeshi Yabushita
Original Assignee
Nhk Spring Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nhk Spring Co., Ltd. filed Critical Nhk Spring Co., Ltd.
Priority to JP2008558087A priority Critical patent/JP5037536B2/ja
Priority to CN2008800051947A priority patent/CN101611219B/zh
Publication of WO2008099813A1 publication Critical patent/WO2008099813A1/ja
Priority to US12/539,871 priority patent/US8025039B2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
    • F01L1/462—Valve return spring arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L1/0532—Camshafts overhead type the cams being directly in contact with the driven valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/143—Tappets; Push rods for use with overhead camshafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/185—Overhead end-pivot rocking arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/10—Connecting springs to valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2810/00—Arrangements solving specific problems in relation with valve gears
    • F01L2810/03—Reducing vibration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/02—Formulas

Abstract

　エンジンのシリンダヘッド１０にポート１１が形成されている。ポート１１は弁１５によって開閉される。弁ばね装置１６は、第１のばね４１と第２のばね４２を備えている。第２のばね４２はハウジング５０に収納され、軸線Ｘ方向に圧縮された状態、すなわち予荷重が与えられた状態で、ストッパ５２によって保持されている。第２のばね４２の前記予荷重は、第１のばね４１の取付け荷重よりも大きい。ばね４１，４２に軸荷重Ｐが加わる。弁ばね装置１６の荷重－撓み特性は、軸荷重Ｐが所定値以下のときに第１のばね４１のみが前記軸線方向に撓み、軸荷重Ｐが前記所定値を越えたときに第１のばね４１と第２のばね４２の双方が前記軸線方向に撓む特性である。
PCT/JP2008/052266 2007-02-15 2008-02-12 弁ばね装置と、それを用いたエンジンの動弁機構 WO2008099813A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2008558087A JP5037536B2 (ja) 2007-02-15 2008-02-12 弁ばね装置と、それを用いたエンジンの動弁機構
CN2008800051947A CN101611219B (zh) 2007-02-15 2008-02-12 阀簧装置及使用该阀簧装置的发动机的阀动机构
US12/539,871 US8025039B2 (en) 2007-02-15 2009-08-12 Valve spring device and valve train of internal combustion engine using the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-035213 2007-02-15
JP2007035213 2007-02-15

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/539,871 Continuation US8025039B2 (en) 2007-02-15 2009-08-12 Valve spring device and valve train of internal combustion engine using the same

Publications (1)

Publication Number Publication Date
WO2008099813A1 true WO2008099813A1 (ja) 2008-08-21

Family

ID=39690041

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/052266 WO2008099813A1 (ja) 2007-02-15 2008-02-12 弁ばね装置と、それを用いたエンジンの動弁機構

Country Status (4)

Country Link
US (1) US8025039B2 (ja)
JP (1) JP5037536B2 (ja)
CN (1) CN101611219B (ja)
WO (1) WO2008099813A1 (ja)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS549207U (ja) * 1977-06-21 1979-01-22
JPS6077711U (ja) * 1983-11-01 1985-05-30 マツダ株式会社 エンジンの動弁装置
JPS6397811A (ja) * 1986-10-13 1988-04-28 Honda Motor Co Ltd 内燃機関の動弁装置
JPH04284109A (ja) * 1991-03-14 1992-10-08 Atsugi Unisia Corp エンジンの弁作動装置
JPH04126043U (ja) * 1991-05-10 1992-11-17 三菱自動車工業株式会社 コイルばね
JPH0533621A (ja) * 1991-07-29 1993-02-09 Atsugi Unisia Corp 内燃機関の動弁装置
JPH08177422A (ja) * 1994-12-26 1996-07-09 Nissan Motor Co Ltd 内燃機関のバルブスプリング
JP2004169730A (ja) * 2002-11-18 2004-06-17 Isuzu Motors Ltd 圧縮コイルばね

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2545440A1 (de) 1975-10-10 1977-04-21 Artos Meier Windhorst Kg Abluftmengenregelung bei trocknungsund fixieranlagen
ES468300A1 (es) * 1977-04-28 1978-11-16 Hoechst Ag Procedimiento para la preparacion de 1,2-dicloroetano.
JPS55112008A (en) * 1979-02-20 1980-08-29 Nippon Precision Saakitsutsu Kk Low frequency clock formation circuit
JPS6077711A (ja) * 1983-10-03 1985-05-02 松下電器産業株式会社 厨房家具の天板
CA1331942C (en) * 1986-04-16 1994-09-13 Tadashi Hanaoka Valve operating mechanism in an internal combustion engine
CN2351558Y (zh) * 1999-01-21 1999-12-01 郭来顺 内燃机进、排气阀无凸轮启闭装置
JP2000240705A (ja) 1999-02-18 2000-09-05 Suncall Corp 弁ばね装置
JP4284109B2 (ja) * 2003-05-26 2009-06-24 嘉宏 飯田 液滴噴射方法及び装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS549207U (ja) * 1977-06-21 1979-01-22
JPS6077711U (ja) * 1983-11-01 1985-05-30 マツダ株式会社 エンジンの動弁装置
JPS6397811A (ja) * 1986-10-13 1988-04-28 Honda Motor Co Ltd 内燃機関の動弁装置
JPH04284109A (ja) * 1991-03-14 1992-10-08 Atsugi Unisia Corp エンジンの弁作動装置
JPH04126043U (ja) * 1991-05-10 1992-11-17 三菱自動車工業株式会社 コイルばね
JPH0533621A (ja) * 1991-07-29 1993-02-09 Atsugi Unisia Corp 内燃機関の動弁装置
JPH08177422A (ja) * 1994-12-26 1996-07-09 Nissan Motor Co Ltd 内燃機関のバルブスプリング
JP2004169730A (ja) * 2002-11-18 2004-06-17 Isuzu Motors Ltd 圧縮コイルばね

Also Published As

Publication number Publication date
CN101611219B (zh) 2012-03-14
JPWO2008099813A1 (ja) 2010-05-27
US8025039B2 (en) 2011-09-27
US20090293827A1 (en) 2009-12-03
CN101611219A (zh) 2009-12-23
JP5037536B2 (ja) 2012-09-26

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